Route · ORD → SJU · 2020–2025 BTS data
Chicago to San Juan
The ORD–SJU corridor (Chicago, IL → San Juan, PR) runs ahead of the national average, served by 15 carriers across roughly 2,072 miles.
Data updated 2026-06-13
- 81.1%
- On-time
- +2.1 pts
- vs US avg
- 69 min
- Delay when late
- 5,510
- Flights
Cancelled
0.4%
Best Month
Apr 2024 92%
Worst Month
Aug 2024 67%
Distance
2,072 mi
Carriers
15
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 131 | 35 | 0 | 0 | NK,AA,UA |
| Nov 2025 | 100 | 26 | 1 | 0 | UA,NK,AA |
| Oct 2025 | 74 | 15 | 0 | 0 | AA,UA,NK |
| Sep 2025 | 51 | 11 | 0 | 0 | UA,NK,AA |
| Aug 2025 | 111 | 31 | 1 | 0 | AA,NK,UA |
| Jul 2025 | 127 | 36 | 0 | 0 | AA,NK,UA |
| Jun 2025 | 117 | 19 | 0 | 0 | AA,UA,NK |
| May 2025 | 116 | 21 | 0 | 0 | AA,UA,NK |
| Apr 2025 | 128 | 15 | 1 | 0 | NK,UA,AA |
| Mar 2025 | 151 | 35 | 0 | 0 | AA,UA,NK |
| Feb 2025 | 92 | 10 | 0 | 0 | AA,UA,NK |
| Jan 2025 | 114 | 23 | 0 | 3 | AA,UA,NK |
| Dec 2024 | 134 | 28 | 0 | 0 | AA,NK,UA |
| Nov 2024 | 94 | 16 | 0 | 0 | UA,NK |
| Oct 2024 | 55 | 7 | 0 | 0 | UA,NK |
| Sep 2024 | 50 | 8 | 0 | 0 | NK,UA |
| Aug 2024 | 95 | 31 | 1 | 1 | AA,NK,UA |
| Jul 2024 | 128 | 33 | 6 | 1 | AA,NK,UA |
| Jun 2024 | 121 | 30 | 0 | 1 | AA,NK,UA |
| May 2024 | 94 | 10 | 0 | 2 | AA,NK,UA |
| Apr 2024 | 107 | 9 | 0 | 0 | AA,NK,UA |
| Mar 2024 | 134 | 35 | 0 | 0 | AA,NK,UA |
| Feb 2024 | 92 | 8 | 0 | 0 | AA,NK,UA |
| Jan 2024 | 100 | 28 | 1 | 0 | AA,NK,UA |
Cancellation Rate
0.4%
11 of 2,516 flights
Diversion Rate
0.3%
8 of 2,516 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
ORD - Chicago
Full on-time, delay-cause, and seasonal performance for Chicago, IL.
Origin airport →SJU - San Juan
Full on-time, delay-cause, and seasonal performance for San Juan, PR.
Destination airport →Compare the two airports
See ORD and SJU side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to ORD–SJU.
Routes with a similar on-time rate
What the Data Says About ORD to SJU
5,510 tracked flights put the ORD to SJU pairing (Chicago to San Juan) at a 81.1% on-time rate, squarely in line with the wider network. Delays that do occur run 68.8 minutes on average. Across the 2,072-mile route and its 15 carriers, the trailing 24 months show 0.4% cancelled and 0.3% diverted (2,516 flights sampled).
The monthly split is wide on this route: Apr 2024 posted the strongest performance at 92% on-time, while Aug 2024 came in at just 67% - a 24-point swing worth factoring into travel timing.
Frequently Asked Questions
How often are flights delayed from ORD to SJU? ▼
What is the cancellation rate for ORD to SJU? ▼
How far is the flight from ORD to SJU? ▼
When is the best time to fly from ORD to SJU? ▼
Flight Guides
Tips and data-driven advice for choosing reliable routes.
Explore PlainFlights
Data source
Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.
Read our methodology - how this data is sourced, computed, and verified.
Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.